Improvement in plowshares



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eEoRle W. COOPER, OFOGEECHEE, GEORGIA.

' I Letters Patent No. 84,798, dated December 8, 1868.

IMPROVEMENT IN PLOWSHARES.

' The Schedule referred to mthese Letters Patent and making part of the same.

' 011 the planeof the line 2::15, fig. 1.

Figure 3 is a front elevation, partly in section, of the same.

Similar letters of reference indicate corresponding parts.

This invention relates "to a new mode of constructing plowshares, and also to a new manner of securing the same tothe foot.

The plowshare is made of cast-iron, and, by its peculiar shape and construction, it can be made without a landside-plate.

The fastening-device is a U -shaped bolt, passing with one arm through the share and foot, and with the other arm through the share into the foot, so that, by means of one bolt and nut, the efl'ectof two bolts and nuts, without their disadvantages, is produced.

A, in the drawing, represents my improved plowshare. The same is made, of cast-iron, in such a manner that thosepaits where it is most liable to break are made thickest, while the other parts are thinner.

Patent- The line :c-a: in fig. 1 indicates the weakest part of every plowshare, and, from fig. 2, it will appear that I overcome such Weakness by making the metal thicker than at other places.

There is no landside-plate employed on this improved share. The share is made rather thick on the landside, so as to balance the plow properly. The landside-plate is generally employed for the purpose of retaining the plow in the desired direction. To obtain the same result without the landside, I have made the front cutting-edge of my share of peculiar shape, as in fig. 3, that is, concave on the under side. Thereby the plow will be caused to rest on the-left-hand edge, and will be fully obedient to theguidauoe. l

The share isfastened to the foot by means'of a bolt, B, and nut, a, the head of the bolt being hook-shaped, as shown in fig. 1, so that the one bolt and nut may be employed with precisely the same effect with which two bolts were heretofore used.

The bolt B may be used for fastening any suitable kind of share to thev foot.

Having thus described my invention, 4

I claim as new, and desire to secure by Letters A cast-iron plowshar'e, A, made, as described, without a landsiderplate, and with a concave front edge,

' substantially as and for the purpose set forth.

G. W. COOPER. Witnesses:

WM. F. MCNAMARA, ALEX.- F. ROBERTS. 

